Easy Installation: Designed to fit securely on aquarium edges up to 15MM thick. Enhanced Cooling: Increases air flow over the water , utilizing evaporative cooling to lower water temperature effectively. and Safe: Built with materials that resist , making it suitable for both freshwater and saltwater environments. Compact and Efficient: and small in size, yet with a long lifespan, making it both economical and practical. Automatic Temperature Adjustment: The fan's rotation is adjusted automatically to maintain the desired water temperature seamlessly. Voltage: AC110V The Small Aquarium Accessories Adjustable Fan is an innovative solution for maintaining optimal water temperature in aquariums. With its intelligent temperature control system, it monitors water temperature and adjusts the fan's operation automatically based on preset thresholds. This ensures efficient cooling without the need for manual intervention, providing a safe and user-friendly experience for aquarium enthusiasts. Color: As Shown Material: plastic Package Contents: 1x fish tank cooling fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.